Abstract:
Over-exploitation of marine resources and frequent anthropogenic activities have brought about problems in marine environment. It is becoming increasingly prominent in the coastal areas of China where severe eutrophication occurred in several areas. At present, more attentions have been paid to the seawater eutrophication around the world, ecological restoration was considered as one of the important strategies to prevent eutrophication. Macroalgae as a primary producer in marine ecosystem play a key role in ecological restoration. Macroalgae-remediation can not only help to achieve a beneficial cycle for a healthn ecosystem but also coordinates economic development and environment protection. In this review, based on the nearshore environment problems in China and the corresponding macroalgal restoration strategies, three cases of ecological restoration project in sea areas of different spatial scales, including inshore fully-enclosed sea area, semi-closed bay and open sea area, were summarized. Meanwhile, the ecological functions and effects of macroalgae during the restoration are revealed. This paper can be taken as reference for the marine ecological restoration in China.
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